linux-kernel - [tip:x86/urgent] x86/apic: Update the 'apic=' description of setting APIC driver

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Date:   Thu, 28 Dec 2017 03:37:10 -0800
From:   tip-bot for Dou Liyang <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     hpa@...or.com, linux-kernel@...r.kernel.org, tglx@...utronix.de,
        douly.fnst@...fujitsu.com, mingo@...nel.org
Subject: [tip:x86/urgent] x86/apic: Update the 'apic=' description of
 setting APIC driver

Commit-ID:  64e05d118e357bb52a084b609436acf292ce7944
Gitweb:     https://git.kernel.org/tip/64e05d118e357bb52a084b609436acf292ce7944
Author:     Dou Liyang <douly.fnst@...fujitsu.com>
AuthorDate: Mon, 4 Dec 2017 12:03:13 +0800
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Thu, 28 Dec 2017 12:32:07 +0100

x86/apic: Update the 'apic=' description of setting APIC driver

There are two consumers of apic=: the APIC debug level and the low
level generic architecture code, but Linux just documented the first
one.

Append the second description.

Signed-off-by: Dou Liyang <douly.fnst@...fujitsu.com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: peterz@...radead.org
Cc: rdunlap@...radead.org
Cc: corbet@....net
Link: https://lkml.kernel.org/r/20171204040313.24824-2-douly.fnst@cn.fujitsu.com

---
 Documentation/admin-guide/kernel-parameters.txt | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index b74e133..852fb11 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -328,11 +328,15 @@
 			not play well with APC CPU idle - disable it if you have
 			APC and your system crashes randomly.
 
-	apic=		[APIC,X86-32] Advanced Programmable Interrupt Controller
+	apic=		[APIC,X86] Advanced Programmable Interrupt Controller
 			Change the output verbosity whilst booting
 			Format: { quiet (default) | verbose | debug }
 			Change the amount of debugging information output
 			when initialising the APIC and IO-APIC components.
+			For X86-32, this can also be used to specify an APIC
+			driver name.
+			Format: apic=driver_name
+			Examples: apic=bigsmp
 
 	apic_extnmi=	[APIC,X86] External NMI delivery setting
 			Format: { bsp (default) | all | none }